Câu ví dụ #1
1. An analysis of hundreds of molars from mammals alive during the 20 million years before the K-Pg boundary revealed a huge variety of shapes, a telltale sign of varied diets and species diversity.
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2. Imbalanced diets which focus on protein and lack calcium have been cited as the main reason behind malnutrition.
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3. This small amount of calcium, however, is neutralized as Vietnamese people favor salty diets.
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4. To develop the urine test, researchers at three universities asked 19 volunteers to adhere to four diets ranging from ultra-healthy to artery-clogging.
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